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| Attenuator dc - 6.0 GHz Features Rev A Preliminary Information MAATGM0001 6 Bit Attenuator Range 35dB Coverage, LSB = 0.56dB TTL Control Inputs MSAGTM Process 5mm, 28 Lead, PQFN Package Description The MAATGM0001 is a 6-bit Attenuator with Parallel Input Control. This product is fully matched to 50 ohms on both the input and output. Fabricated using M/A-COM's repeatable, high performance and highly reliable GaAs Multifunction Self-Aligned Gate MESFET Process, each device is 100% RF tested on wafer to ensure performance compliance. M/A-COM's MSAGTM process features robust silicon-like manufacturing processes, planar processing of ion implanted transistors, multiple implant capability enabling power, low-noise, switch and digital FETs on a single chip, and polyimide scratch protection for ease of use with automated manufacturing processes. The use of refractory metals and the absence of platinum in the gate metal formulation prevents hydrogen poisoning when employed in hermetic packaging. TG0001 Primary Applications Satellite Communication Phased Array Radar Maximum Ratings1 Parameter Input Power Source Supply Voltage Junction Temperature Storage Temperature Symbol PIN VEE TJ TSTG Absolute Maximum 36 -6 170 -55 to +150 Units dBm V C C 1. Operation beyond these limits may result in permanent damage to the part. Recommended Operating Conditions2 Characteristic Control Voltage Logic High Logic Low Junction Temperature Digital Supply Voltage TJ VEE -5.2 -5 Symbol A1 thru A6 2.8 0 5 0 5 0.8 150 -4.8 V V C V Min Typ Max Unit 2. Operation outside of these ranges may reduce product reliability. 1 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Attenuator dc - 6.0 GHz Electrical Characteristics: TB = 25C, Z0 = 50, VEE = -5V Parameter Bandwidth Reference State Insertion Loss Input VSWR (All States) Output VSWR (All States) RMS Attenuation Error RMS Attenuation Error -- Calibrated Attenuation Range Phase Variation over all Attenuator settings Digital Supply Current Input Third Order Intercept Input 1-dB Compression Point Symbol f IL VSWR VSWR RMS RMS G IEE ITOI P1dB Typical dc - 6 4 1.5:1 1.5:1 2 0.2 35 <8 <10 36 26 Rev A Preliminary Information MAATGM0001 Units GHz dB dB dB dB mA dBm dBm Truth Table3 Pin 22 23 24 25 26 27 28 Designation A6 A5 A4 VEE A3 A2 A1 Description 18.0dB Attenuation Bit : MSB 9.0dB Attenuation Bit 4.5dB Attenuation Bit DC Suply Voltage 2.25db Attenuation Bit 1.12dB Attenuation Bit 0.56dB Attenuation Bit : LSB Level Logic High Logic High Logic High -5V Logic High Logic High Logic High State Attenuation 18.0dB Attenuation 9.0dB Attenuation 4.5dB ON Attenuation 2.25dB Attenuation 1.12dB Attenuation 0.56dB 3. All Attenuation Bits at Logic Low = Reference State. Operating Instructions This device is static sensitive. Please handle with care. To operate the device, follow these steps. 1. Apply VEE = -5 V. 2. Apply Logic Voltages to control circuit as listed in Recommended Operating Conditions Table. 3. Power Down. Set VEE = 0. 2 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.82982 Visit www.macom.com for additional data sheets and product information. Attenuator dc - 6.0 GHz 10 6 Rev A Preliminary Information MAATGM0001 5.0 4.0 Average Error RMS Error RMS Error - Calibrated Insertion Loss Input VSWR 8 Output VSWR 5 3.0 2.0 Insertion Loss (dB) Attenuation Error () 6 4 VSWR 1.0 0.0 -1.0 -2.0 -3.0 -4.0 4 3 2 2 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency (GHz) 1 -5.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency (GHz) Figure 2. Attenuator Figures of Merit: Average Error, RMS Error, and Calibrated RMS Error Over All States vs. Frequency Figure 1. Reference State Insertion Loss, Input and Output VSWR vs. Frequency 0 -5 45 30 -10 Relative Phase Shift () -15 Gain (dB) -20 -25 -30 -35 -30 -40 -45 0.0 1.0 2.0 3.0 Frequency (GHz) Figure 3. Relative Gain vs. Frequency Over All Attenuator States 4.0 5.0 6.0 -45 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency (GHz) Figure 4. Relative Phase Shift vs. Frequency Over All Attenuator States 15 0 -15 6 6 5 5 Input VSWR 4 Output VSWR 4 3 3 2 2 1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) 4.0 4.5 5.0 5.5 6.0 1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Frequency (GHz) Figure 6. Output VSWR vs. Frequency Over All Attenuator States Figure 5. Input VSWR vs. Frequency Over All Attenuator States 3 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. Attenuator dc - 6.0 GHz Rev A Preliminary Information MAATGM0001 Figure 7. 5mm PQFN 28 Lead Package Drawing Reference JEDEC M0-220 (see http://www.jedec.org), VAR. VJJC-3 (Issue E) for additional dimensional and tolerance information. VE E 0.1 F VEE A1 A2 A3 A4 A5 T G0001 Figure 8. Recommended Bias Configuration Note: The exposed pad centered on the package bottom must be connected to RF and dc ground for proper electrical and thermal operation. Refer to M/A-COM Application Note Surface Mounting Instructions for PQFN Packages #S2083* for assembly guidelines. Additional Precaution: All parts must receive a bake-out of 125C for 24 hours prior to any solder reflow operation. *Application Notes can be found by going to the Site Search Page of M/A-COM's web page (http://www.macom.com/search/search.jsp) and searching for the required Application Note. 4 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. A6 6 CONTROL INPUTS Attenuator dc - 6.0 GHz Rev A Preliminary Information MAATGM0001 Figure 9. Demonstration Board PN MAATGM0001-SMB (available upon request). 5 M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. |
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